[Users] custom nfs mount options
Greg Padgett
gpadgett at redhat.com
Thu Jan 24 15:01:33 UTC 2013
On 01/24/2013 08:03 AM, Alex Leonhardt wrote:
> same here, ovirt 3.1 from dreyou's repo ...
>
> vdsm-python-4.10.0-0.44.14.el6.x86_64
> vdsm-cli-4.10.0-0.44.14.el6.noarch
> vdsm-xmlrpc-4.10.0-0.44.14.el6.noarch
> vdsm-4.10.0-0.44.14.el6.x86_64
>
> Alex
>
>
>
> On 24 January 2013 12:33, Alexandru Vladulescu <avladulescu at bfproject.ro
> <mailto:avladulescu at bfproject.ro>> wrote:
>
> On 01/24/2013 02:25 PM, Itamar Heim wrote:
>
> On 24/01/2013 04:24, Alexandru Vladulescu wrote:
>
>
> Hi guys,
>
> I remember asking the same thing a couple of weeks ago. Itamar
> answered
> to be the same, should check the vdsm.conf file for nfs mount
> options.
> Because I did not had the time to do test this until now, I
> return with
> the test results.
>
> Well Alex it seems to be right, on the 3.1 version, if you go
> and edit
> the /etc/vdsm/vdsm.conf file, on line 146, I uncommented the
> nfs_mount_options parameter and changed it to :
>
> nfs_mount_options =
> soft,nosharecache,noatime,__rsize=8192,wsize=8192
>
> Went in Ovirt interface, put the node from Hosts tab into
> Maintenance,
> so that the ISO domain and Master Domain will get unmounted
> automatically; restarted the vdsm service on the hypervisior
> server and
> activate the node back from GUI. Upon mount command, there is
> no change
> or difference between what I have added and what was configured
> automatically before.
>
>
> I remember something about you must not pass any nfs option from
> ovirt, or it will override the vdsm.conf.
> are you trying to set nfs options from both engine and vdsm.conf?
>
> Basically, I had 2 questions, one was like Alex asked and it is in the
> current topic, and the other was suggestion to add these nfs
> configuration parameters changes into the GUI in Storage tab. I asked
> if besides the retrans, timeo and vers is it possible to add anything
> else in the future GUI devel.
>
> Must mention, I test on 3.1 version from dreyou's repo.
This is key. There was a bug where vdsm did not take the vdsm.conf
nfs_mount_options into consideration [1], which was fixed upstream in
4.10.1--so after the version you are running. There was also a
complementary patch in engine--the two work together to fix this issue.
If you had the fix, you would simply need to be sure to not check the
"Override Default Options" checkbox for your NFS storage in the UI.
However, without the fix, I think the most straightforward way to
accomplish what you want is to configure the storage using a Posix domain
as Itamar suggested earlier in the thread.
I'll leave the question of adding additional, custom parameters in the UI
for others to answer. Seems like it could be useful, but can be
accomplished other ways.
[1] http://bugzilla.redhat.com/826921
>
>
>
> type nfs
> (rw,soft,nosharecache,timeo=__10,retrans=6,vers=4,addr=x.x.__x.x,clientaddr=x.x.x.x)
>
>
> Might this be a bug on vdsm to be fixed ?
>
> Alex.
>
>
> On 01/24/2013 01:45 PM, Alex Leonhardt wrote:
>
> So I've tried some bits Itamar asked me to - however,
> still get the
> same mount options shown.
>
> I tried "service vdsmd reconfigure; service vdsmd restart"
> - the mount
> for HV03:/vmfs/data should now have the new mount options,
> but no luck.
>
> Anyone time to help ?
>
> Alex
>
>
>
> On 24 January 2013 10:54, Alex Leonhardt
> <alex.tuxx at gmail.com <mailto:alex.tuxx at gmail.com>
> <mailto:alex.tuxx at gmail.com <mailto:alex.tuxx at gmail.com>>>
> wrote:
>
> I've got now :
>
> nfs_mount_options =
> soft,nosharecache,rsize=32768,__wsize=32768,noatime
>
>
> However, when I check the mounts on the host, it does
> not show
> these addtitional options used ? (only
> soft,nosharecache), here
> the mount output:
>
> HV02:/vmfs/data.old2 on
> /rhev/data-center/mnt/HV02:___vmfs_data.old2
> type nfs
> (rw,soft,nosharecache,timeo=__600,retrans=6,nfsvers=3,addr=__x.x.x8)
> HV02:/vmfs/data on
> /rhev/data-center/mnt/HV02:___vmfs_data type nfs
> (rw,soft,nosharecache,timeo=__600,retrans=6,vers=3,addr=x.x.__x8)
> HV03:/vmfs/data on
> /rhev/data-center/mnt/HV03:___vmfs_data type nfs
> (rw,soft,nosharecache,timeo=__600,retrans=6,nfsvers=3,addr=__127.0.0.1)
>
> Above is after I restarted HV03 so it really should
> have mounted
> HV03:/vmfs/data with the new options
>
> another question would be if "nolock" would be a good
> idea as it
> seems that nfs ops are sometimes being blocked by a
> lock ? at
> least, it behaves as if .. i havent further
> investigated yet.
>
> Alex
>
>
>
>
>
> On 23 January 2013 13:27, Itamar Heim
> <iheim at redhat.com <mailto:iheim at redhat.com>
> <mailto:iheim at redhat.com <mailto:iheim at redhat.com>>>
> wrote:
>
> On 22/01/2013 11:43, Haim Ateya wrote:
>
> you can set it manually on each hypervisor by
> using vdsm.conf.
>
> add the following into /etc/vdsm/vdsm.conf
>
> [irs]
> nfs_mount_options = soft,nosharecache
>
> restart vdsmd service on the end.
>
>
> you can also set them via a posixfs storage
> domain, but for
> nfs, an nfs storage domain is recommended over a
> posixfs one.
> question is what is the use case for them, and
> should they be
> added for nfs domains as well.
>
>
>
> ----- Original Message -----
>
> From: "Alex Leonhardt"
> <alex.tuxx at gmail.com <mailto:alex.tuxx at gmail.com>
> <mailto:alex.tuxx at gmail.com
> <mailto:alex.tuxx at gmail.com>>>
> To: "oVirt Mailing List" <users at ovirt.org
> <mailto:users at ovirt.org>
> <mailto:users at ovirt.org
> <mailto:users at ovirt.org>>>
> Sent: Tuesday, January 22, 2013 1:46:56 AM
> Subject: [Users] custom nfs mount options
>
>
>
>
>
> Hi,
>
> Is it possible set custom nfs mount options,
> specifically : noatime,
> wsize and rsize ? I couldnt see anything
> when "adding
> a NFS domain"
> - only timeout & retry.
>
>
> Thanks!
> Alex
>
>
>
>
>
> --
>
>
>
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> --
> Alexandru Vladulescu
> System Engineer
> ------------------------------__------------------------------__---------------------
>
> Bright Future Project Romania
> Skype : avladulescu
> Mobile : +4(0)726.373.098 <tel:%2B4%280%29726.373.098>
> ------------------------------__------------------------------__---------------------
>
>
>
>
>
> --
> Alexandru Vladulescu
> System Engineer
> ------------------------------__------------------------------__---------------------
> Bright Future Project Romania
> Skype : avladulescu
> Mobile : +4(0)726.373.098 <tel:%2B4%280%29726.373.098>
> ------------------------------__------------------------------__---------------------
>
>
>
>
> --
>
> | RHCE | Senior Systems Engineer | www.vcore.co <http://www.vcore.co> |
> www.vsearchcloud.com <http://www.vsearchcloud.com> |
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